District of Columbia: US President Donald Trump on Tuesday insisted he had the right to share sensitive information with Russia, saying he acted to help Moscow in its "fight against ISIS and terrorism."

"As President I wanted to share with Russia (at an openly scheduled WH meeting) which I have the absolute right to do, facts pertaining to terrorism and airline flight safety," he wrote in an early morning tweet.

His Twitter message came one day after news broke that he allegedly shared sensitive intelligence with Russia`s foreign minister and Washington ambassador during their visit last week to the Oval Office.

Trump wrote that he was motivated by "humanitarian reasons, plus I want Russia to greatly step up their fight against ISIS and terrorism."